1

???allergic rxn???:
Penicillins are safe in pregnancy but you could still be allergic to it. I would stop taking it; take 25mg of Benadryl (it may make you sleepy, so don't drive); call & show rash to your ob. If having shortness of breath/difficulty breathing, call 911 immediately & inform your ob. There are many antibiotics which can safely be substituted in pregnancy. Let your OB decide if allergy or just a rxn.
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Most bumps and blotches on a newborn baby are harmless and clear up by themselves. By far the most common skin problem in infants is diaper rash. Diaper rash is an irritation of the skin caused by dampness, urine, or feces. Most babies who wear diapers will have some type of diaper rash. However, there are other skin disorders that can cause rashes. These are usually not serious unless accompanied by other symptoms.
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4

Watch salt intake:
This could be a problem of salt intake being too high. Other alternatives that could cause swelling are glutens and dairy. I would check in with your primary care doc for a complete checkup
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7

Fever or medications:
Did the rash appear along with a tonsillitis? Were you being treated for it? An infection can cause a rash and a medication can cause it too. If you were given an antibiotic and the rash appeared afterwards, call your doctor.
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10

Hand in hand:
This has been known as "pudic erythema": a reaction to emotion/embarrassment, usually. It's perceived as "hyperexcitability of vaso-motor nerves" and can go hand in hand with urticarial (hives) reactions - a form of allergic reaction that can happen idiosyncratically (individual/unique to each person), like may be with strawberry wine. So, there is a correlation.
Mention it to your primary md.
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